CN106774626B - Combined type signal generation system and method - Google Patents
Combined type signal generation system and method Download PDFInfo
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- CN106774626B CN106774626B CN201611167529.8A CN201611167529A CN106774626B CN 106774626 B CN106774626 B CN 106774626B CN 201611167529 A CN201611167529 A CN 201611167529A CN 106774626 B CN106774626 B CN 106774626B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/02—Digital function generators
- G06F1/022—Waveform generators, i.e. devices for generating periodical functions of time, e.g. direct digital synthesizers
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/32—Means for saving power
- G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
- G06F1/3234—Power saving characterised by the action undertaken
- G06F1/3287—Power saving characterised by the action undertaken by switching off individual functional units in the computer system
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Abstract
Combined type signal generation system, including digital processing unit, further include the power module for each function module power supply of digital processing unit, and digital processing unit includes：DDS registers：For configuring the DDS parameters inside digital processing unit；M sequence register：For storing M sequence generting machanism and parameter；Inverted M sequence register：For 1 bit register, instruction is negated to the M sequence signal of M sequence register generation for storing.Combined type signal generating method, can generate sinusoidal signal according to DDS parameters, generate M sequence signal according to M sequence generting machanism and parameter, while can also generate inverted M sequence signal according to inverted M sequence register instruction.The present invention provides a kind of combined type signal generation system and method, since the function module for simplifying signal generation system is configured, it can be achieved that higher signal stabilization and higher failure rate.
Description
Technical field
The invention belongs to digital signal generation technique field, designs a kind of combined type signal generation system and method.
Background technology
Existing signal generation system function is single, can only realize a kind of generation of signal.With signal disclosed in the prior art
Exemplified by generator, such as the Chinese patent application of Publication No. CN106059536 discloses a kind of square wave signal generator, it is only
Square-wave signal can be produced.If needing to use multi-signal in, multiple signal generators are needed to configure to use.
On the other hand, in the prior art, the defects of signal generation system is more complicated there are circuit structure, and power consumption is high.
By taking the special Exploration Domain such as geological prospecting, mars exploration as an example, needed due to the particularity of application environment and to signal
The particularity asked, on the one hand its application environment is more severe, on the other hand the demand of its signal for having multiple format again, if repeatedly more
Signal generation system is changed, operation difficulty will certainly be increased.Therefore, for adapt to above demand, it is necessary to it is a kind of it is simple in structure, portable,
Produce signal stabilization and produce the diversified signal generation system of signal and method.
The content of the invention
It is an object of the invention to basis in the prior art, a kind of signal generator can only produce a kind of form signal, and
The problems such as signal generator power consumption is high, there is provided a kind of producing sinusoidal signal, M sequence signal and inverted M sequence signal, low-power consumption
Compound signal generation system and signal generating method.
To solve problem above, the present invention provides following technical scheme：Combined type signal generation system, including digital processing
Device, further includes the power module for each function module power supply of digital processing unit, and digital processing unit includes：DDS registers：For with
Put the DDS parameters inside digital processing unit；M sequence register：For storing M sequence generting machanism and parameter；Inverted M sequence is deposited
Device：For 1 bit register, instruction is negated to the M sequence signal of M sequence register generation for storing；
Digital processing unit is further included to be posted for the control of selected control DDS register, M sequence register and inverted M sequence register
Storage, for producing the sinusoidal signal generator of sinusoidal signal according to DDS registers inner parameter, for being deposited according to M sequence
The M sequence generting machanism generation M sequence signal of device storage and the M sequence signal hair of inverted M sequence register data generation inverted M sequence
Raw device；Sinusoidal signal generator through exporting all the way, and M sequence signal generator through exporting all the way.
Preferably：Further including makes sinusoidal signal generator output signal for control or exports M sequence signal generator
The alternative selector of signal；Sinusoidal signal generator exports filtered amplification module, output amplification module connects alternative selection
Device；The output of M sequence signal generator is through isolating amplifying unit, metal-oxide-semiconductor amplifying unit connects alternative selector；Filter and amplification module
It is connected to adjust the level adjustment module of filter and amplification module output level between output amplification module.
Combined type signal generating method, comprises the following steps：
S1：Step S2 is performed if selection exports sinusoidal signal, if selection output M sequence signal or inverted M sequence signal
Perform step S3；
S2：DDS parameters inside demand configuration DDS registers are generated according to sinusoidal signal, are configured according to output level demand
The output of level adjustment module；Each modular power source in signal path I is connected, then performs step S4；
S3：M sequence generting machanism inside M sequence register is configured according to the generation demand of M sequence signal, metal-oxide-semiconductor is set
Amplifying unit output voltage；Each modular power source in signal path II is connected, then performs step S4；
S4：Output or signal path II are connected through alternative selector control messenger path I according to output waveform instruction
Connect output；
S5：If receiving waveform switch instruction, step S1 is performed.
Preferably：M sequence signal generator is made as：If M sequence is ak, ak
It is initially the sequence that one is not 0；Wherein, f (x) is primitive polynomial, n=k, ciFor 1 or 0；Then M sequence generates as the following formula：
Preferably：When signal path I is connected, power module stops powering for signal path II；When signal path II is connected,
Stop powering for signal path I.
Beneficial effects of the present invention are：
(1) signal generation system provided by the invention, can generate sinusoidal signal, M sequence signal and inverted M sequence signal, be
A kind of combined type signal generation system.Since the function module for simplifying signal generation system configures the signal, it can be achieved that higher
Stability and higher failure rate.
(2) demand modeling power module is produced according to signal and produces path power supply for corresponding signal, reduced unnecessary
Power consumption, the present invention are at the same time a kind of power down signal generation systems.
(3) present invention is a kind of portable signal generating means based on digital processing unit, suitable for address exploration, Mars
The special application fields such as detection.
Brief description of the drawings
Fig. 1 is composite signal generating system structure diagram.
Fig. 2 is composite signal generating system work flow diagram.
Fig. 3 is M sequence generation mechanism schematic diagram.
Embodiment
The embodiment of the present invention is clearly fully described by below with reference to attached drawing.Obviously, it is embodied
Mode described embodiment is only the part of the embodiment of the present invention, instead of all the embodiments.Based in the present invention
Embodiment, those of ordinary skill in the art's all other embodiments obtained on the premise of creative work is not made,
Belong to protection scope of the present invention.
As shown in Figure 1, present embodiment provides a kind of combined type signal generation system, including digital processing unit, further include
For digital processing unit and the power module of each function module power supply of signal generation system.
Digital processing unit is realized based on FPGA in the present embodiment, is specifically included：DDS registers：For configuring digital processing
DDS parameters inside device；M sequence register：For storing M sequence generting machanism and parameter；Inverted M sequence register：Posted for 1
Storage, instruction is negated for storing to the M sequence signal of M sequence register generation.
Digital processing unit is further included to be posted for the control of selected control DDS register, M sequence register and inverted M sequence register
Storage, for producing the sinusoidal signal generator of sinusoidal signal according to DDS registers inner parameter, for being deposited according to M sequence
The M sequence generting machanism generation M sequence signal of device storage and the M sequence signal hair of inverted M sequence register data generation inverted M sequence
Raw device；Sinusoidal signal generator through exporting all the way, and M sequence signal generator through exporting all the way.
Further include makes sinusoidal signal generator export signal or M sequence signal generator is exported the two of signal for controlling
Select a selector；The sinusoidal signal generator exports filtered amplification module, output amplification module connects alternative selector, shape
Into signal path I；The M sequence signal generator output is through isolating amplifying unit, metal-oxide-semiconductor amplifying unit connects alternative selection
Device, forms signal path II；It is connected to adjust filter and amplification module output between filter and amplification module and output amplification module
The level adjustment module of level.
Wherein, the conducting voltage of metal-oxide-semiconductor amplifying unit, the effect of metal-oxide-semiconductor amplifying unit can be set by digital processing unit
It is the switch as a Voltage On state, when control terminal exports M sequence square wave, metal-oxide-semiconductor works as the output terminal of big unit
Corresponding square wave can be exported, but the voltage of the non-MOS input terminals of voltage of the square wave exported, the electric current of output can generally be more than
10A。
Wherein, alternative selector uses alternative relay, during work, only turns on signal path I or signal path II；
Filter and amplification module uses low consumed power operational amplifier, and denoising is filtered to the sine wave of sinusoidal signal generator output, and
Carry out a degree of amplification；Level adjustment module is made of reference power source and divider resistance, for adjusting filter and amplification module
The level of sine wave signal is exported, the sinusoidal signal of output is reached the requirement of setting；Isolate amplifying unit to be used to believe M sequence
The M sequence signal of number generator output carries out partition method, to drive metal-oxide-semiconductor amplifying unit to carry out signal output.
Since power module is that each functional unit is individually powered in digital processing unit, in the course of work, FPGA can basis
Need selection to open the power supply of some module or close the power supply of some module, to achieve the purpose that to reduce power consumption.
Present embodiment further provides for a kind of composite signal production method, as shown in Fig. 2, specific steps are including following：
S1：Step S2 is performed if selection exports sinusoidal signal, if selection output M sequence signal or inverted M sequence signal
Perform step S3；Since signal generation system can produce three kinds of sinusoidal signal, M sequence signal and inverted M sequence signal signals, signal
Before generation system work, first need to assign corresponding signal generation instruction to the control register inside FPGA, if selection produces
Sinusoidal signal then switchs to perform step S2, and M sequence signal and inverted M sequence signal switch to perform step S3.
S2：DDS parameters inside demand configuration DDS registers are generated according to sinusoidal signal, are configured according to output level demand
The output of level adjustment module；Each modular power source in signal path I is connected, then performs step S4；Specifically, when selection is given birth to
Into after sinusoidal signal, to DDS registers inside configure DDS parameters, DDS parameters configuration according to demand sinusoidal signal characteristic.
Power simultaneously as power module is respectively each function module of digital processing unit, signal generation system, at this time, for section
It can consider, the power supply of each function module of signal path I, the power supply of each function modules of shutoff signal path II will be only turned on.It is logical
After signal path I is connected, generated through sinusoidal signal generator and send sinusoidal signal, then filtered amplification and output amplification
Afterwards, at signal transmission to alternative selector, meanwhile, during this, with reference to requirement of the output sinusoidal signal to level, pass through
The level of level adjustment module adjustment output signal.
S3：M sequence generting machanism inside M sequence register is configured according to the generation demand of M sequence signal, metal-oxide-semiconductor is set
The output voltage of amplifying unit；Each modular power source in signal path II is connected, then performs step S4；When selection exports M sequence
During signal, M sequence sign register configures the generation mechanism of M sequence signal, specific as follows：
M sequence signal generator is made as：If M sequence is ak(k is M sequence
The series of signal, when specifying output M sequence signal, by it is specified k), it is initial to set an akFor a sequence for or not 0；Wherein, f (x)
For primitive polynomial, n=k, ciFor 1 or 0, after k is specified, the c in primitive polynomialiHave determined that；Then M sequence is given birth to as the following formula
Into：M sequence signal output is to alternative data selector.
When selection exports inverted M sequence signal, it is necessary to set out at the same time M sequence register and inverted M sequence register, wherein M
Sequential register first produces M sequence signal by above mechanism, then carries out M sequence by the instruction that negates in inverted M sequence signal
Signal negates, as inverted M sequence signal output to alternative selector.
It is single by isolation amplifying unit, metal-oxide-semiconductor amplification in the output procedure of M sequence signal and inverted M sequence signal
Member, after carrying out signal enhanced processing, output.
At this time, for energy saving consideration, the power supply of each function module of signal path II, shutoff signal path I will be only turned on
The power supply of each function module.
S4：Output or signal path II are connected through alternative selector control messenger path I according to output waveform instruction
Connect output.
S5：If receiving waveform switch instruction, step S1 is performed.
Claims (3)
1. a kind of combined type signal generating method, is realized based on combined type signal generation system, the combined type signal produces
System includes digital processing unit and power module, it is characterized in that, the digital processing unit includes：
DDS registers：For configuring the DDS parameters inside digital processing unit；
M sequence register：For storing M sequence generting machanism and parameter；
Inverted M sequence register：For 1 bit register, instruction is negated to the M sequence signal of M sequence register generation for storing；
The digital processing unit is further included to be posted for the control of selected control DDS register, M sequence register and inverted M sequence register
Storage, for producing the sinusoidal signal generator of sinusoidal signal according to DDS registers inner parameter, for being deposited according to M sequence
The M sequence generting machanism generation M sequence signal of device storage and the M sequence signal hair of inverted M sequence register data generation inverted M sequence
Raw device；
Sinusoidal signal generator through exporting all the way, and M sequence signal generator through exporting all the way；
Further include for controlling the alternative for making sinusoidal signal generator output signal or making M sequence signal generator output signal
Selector；The sinusoidal signal generator exports filtered amplification module, output amplification module connects alternative selector, forms letter
Number path I；The M sequence signal generator output is through isolating amplifying unit, metal-oxide-semiconductor amplifying unit connects alternative selector, shape
Into signal path II；It is connected to adjust filter and amplification module output level between filter and amplification module and output amplification module
Level adjustment module；
The combined type signal generating method comprises the following steps：
S1：Step S2 is performed if selection exports sinusoidal signal, if selection output M sequence signal or inverted M sequence signal perform
Step S3；
S2：DDS parameters inside demand configuration DDS registers are generated according to sinusoidal signal, level is configured according to output level demand
The output of adjustment module；Each modular power source in signal path I is connected, then performs step S4；
S3：M sequence generting machanism inside M sequence register is configured according to the generation demand of M sequence signal, sets metal-oxide-semiconductor to amplify
The output voltage of unit；Each modular power source in signal path II is connected, then performs step S4；
S4：Output is connected through alternative selector control messenger path I according to output waveform instruction or signal path II is connected
Output；
S5：If receiving waveform switch instruction, step S1 is performed.
2. combined type signal generating method as claimed in claim 1, it is characterized in that, the M sequence signal generator is made as：
<mrow>
<mi>f</mi>
<mrow>
<mo>(</mo>
<mi>x</mi>
<mo>)</mo>
</mrow>
<mo>=</mo>
<msub>
<mi>c</mi>
<mn>0</mn>
</msub>
<mo>+</mo>
<msub>
<mi>c</mi>
<mn>1</mn>
</msub>
<mi>x</mi>
<mo>+</mo>
<mo>...</mo>
<mo>+</mo>
<msub>
<mi>c</mi>
<mi>n</mi>
</msub>
<msup>
<mi>x</mi>
<mi>n</mi>
</msup>
<mo>=</mo>
<munderover>
<mo>&Sigma;</mo>
<mrow>
<mi>i</mi>
<mo>=</mo>
<mn>0</mn>
</mrow>
<mi>n</mi>
</munderover>
<msub>
<mi>c</mi>
<mi>i</mi>
</msub>
<msup>
<mi>x</mi>
<mi>i</mi>
</msup>
<mo>-</mo>
<mo>-</mo>
<mo>-</mo>
<mrow>
<mo>(</mo>
<mn>1</mn>
<mo>)</mo>
</mrow>
</mrow>
If M sequence is ak, akIt is initially the sequence that one is not 0；
Wherein, f (x) is primitive polynomial, n=k, ciFor 1 or 0；Then M sequence generates as the following formula：
<mrow>
<msub>
<mi>a</mi>
<mi>k</mi>
</msub>
<mo>=</mo>
<munderover>
<mo>&Sigma;</mo>
<mrow>
<mi>i</mi>
<mo>=</mo>
<mn>1</mn>
</mrow>
<mi>n</mi>
</munderover>
<msub>
<mi>c</mi>
<mi>i</mi>
</msub>
<msubsup>
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<mrow>
<mi>n</mi>
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</mrow>
<mo>.</mo>
</mrow>
3. combined type signal generating method as claimed in claim 1 or 2, it is characterized in that, when signal path I is connected, power supply mould
Block stops powering for signal path II；When signal path II is connected, stop powering for signal path I.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201611167529.8A CN106774626B (en) | 2016-12-16 | 2016-12-16 | Combined type signal generation system and method |
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| CN201611167529.8A CN106774626B (en) | 2016-12-16 | 2016-12-16 | Combined type signal generation system and method |
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| CN106774626B true CN106774626B (en) | 2018-04-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109855614A (en) * | 2018-12-14 | 2019-06-07 | 北京理工导航控制科技有限公司 | The nonlinear improved method of constant multiplier under a kind of fibre optic gyroscope low angular rate |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102426393A (en) * | 2011-11-16 | 2012-04-25 | 中国地质大学（北京） | Electric prospecting method and device |
| CN103344849A (en) * | 2013-05-31 | 2013-10-09 | 哈尔滨工业大学 | Method for obtaining sensing matrix of random demodulation hardware system |
| CN103684263A (en) * | 2013-11-14 | 2014-03-26 | 杭州电子科技大学 | Method for realizing simple chaotic signal generator based on single-chip microcomputer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101771650B (en) * | 2009-01-07 | 2013-08-21 | 北京泰美世纪科技有限公司 | Channel estimation device and method for OFDM system |
-
2016
- 2016-12-16 CN CN201611167529.8A patent/CN106774626B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102426393A (en) * | 2011-11-16 | 2012-04-25 | 中国地质大学（北京） | Electric prospecting method and device |
| CN103344849A (en) * | 2013-05-31 | 2013-10-09 | 哈尔滨工业大学 | Method for obtaining sensing matrix of random demodulation hardware system |
| CN103684263A (en) * | 2013-11-14 | 2014-03-26 | 杭州电子科技大学 | Method for realizing simple chaotic signal generator based on single-chip microcomputer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109855614A (en) * | 2018-12-14 | 2019-06-07 | 北京理工导航控制科技有限公司 | The nonlinear improved method of constant multiplier under a kind of fibre optic gyroscope low angular rate |
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